PET-PTMG聚醚酯的合成与表征

摘要采用熔融缩聚法合成了聚对苯二甲酸乙二醇酯(PET)-四氢呋喃聚醚(PTMG)聚醚酯,用IR、13C-NMR等手段表征了材料的结构、序列分布与嵌段比例,讨论了缩聚催化剂种类、浓度及缩聚时间等反应条件对PET PTMG聚醚酯的特性粘数的影响。结果表明,PET PTMG聚醚酯呈现酯、醚键的结构特征,并且是无规嵌段共聚物。

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	贾宏涛
	赵蕴慧
	盛京

关键词：熔融缩聚 PET-PTMG聚醚酯

Abstract： poly (ether-ester) based on poly (ethylene terephthalate)-poly (tetramethylene glycol) (PET-PTMG) was synthesized by melt polycondensation.The structure and sequence distribution of PET-PTMG poly (ether-ester) were measured by IR,13C-NMR.The effects of various reaction conditions such as kinds of catalyst and its concentration,polycondensation reaction time on the intrinsic viscosity of poly (ether-ester) were also discussed.The results showed the structure of polymer is ether bond and ester bond,and PET-PTMG poly (ether-ester) is random block copolymer.

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Received 2003-05-15; published 2003-05-15

引用本文:

贾宏涛,赵蕴慧,盛京.PET-PTMG聚醚酯的合成与表征[J]. 化学工业与工程, 2003,20(3): 139-144

JIA Hong-Tao,ZHAO Yun-Hui,SHENG Jing.Synthesis and Characterization of PET-PTMG Poly(ether-ester)[J]. Chemcial Industry and Engineering, 2003,20(3): 139-144

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